nsHTMLMapElement.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- *//* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Mozilla Communicator client code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */#include "nsIDOMHTMLMapElement.h"#include "nsIDOMEventReceiver.h"#include "nsGenericHTMLElement.h"#include "nsHTMLAtoms.h"#include "nsStyleConsts.h"#include "nsPresContext.h"#include "nsContentList.h"#include "nsIDocument.h"#include "nsIHTMLDocument.h"#include "nsCOMPtr.h"class nsHTMLMapElement : publicnsGenericHTMLElement,
publicnsIDOMHTMLMapElement
{
public:
nsHTMLMapElement(nsINodeInfo *aNodeInfo);
virtual ~nsHTMLMapElement();
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
// nsIDOMNode
NS_FORWARD_NSIDOMNODE_NO_CLONENODE(nsGenericHTMLElement::)
// nsIDOMElement
NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
// nsIDOMHTMLElement
NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
// nsIDOMHTMLMapElement
NS_DECL_NSIDOMHTMLMAPELEMENT
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
PRBool aCompileEventHandlers);
virtual void UnbindFromTree(PRBool aDeep = PR_TRUE,
PRBool aNullParent = PR_TRUE);
protected:
nsRefPtr<nsContentList> mAreas;
};
NS_IMPL_NS_NEW_HTML_ELEMENT(Map)
nsHTMLMapElement::nsHTMLMapElement(nsINodeInfo *aNodeInfo)
: nsGenericHTMLElement(aNodeInfo)
{
}
nsHTMLMapElement::~nsHTMLMapElement()
{
if (mAreas) {
mAreas->RootDestroyed();
}
}
NS_IMPL_ADDREF_INHERITED(nsHTMLMapElement, nsGenericElement)
NS_IMPL_RELEASE_INHERITED(nsHTMLMapElement, nsGenericElement)
// QueryInterface implementation for nsHTMLMapElement
NS_HTML_CONTENT_INTERFACE_MAP_BEGIN(nsHTMLMapElement, nsGenericHTMLElement)
NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLMapElement)
NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(HTMLMapElement)
NS_HTML_CONTENT_INTERFACE_MAP_END
nsresult
nsHTMLMapElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
PRBool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(aDocument);
if (htmlDoc) {
htmlDoc->AddImageMap(this);
}
return rv;
}
voidnsHTMLMapElement::UnbindFromTree(PRBool aDeep, PRBool aNullParent)
{
nsCOMPtr<nsIHTMLDocument> htmlDoc = do_QueryInterface(GetCurrentDoc());
if (htmlDoc) {
htmlDoc->RemoveImageMap(this);
}
nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
}
NS_IMPL_DOM_CLONENODE(nsHTMLMapElement)
NS_IMETHODIMP
nsHTMLMapElement::GetAreas(nsIDOMHTMLCollection** aAreas)
{
NS_ENSURE_ARG_POINTER(aAreas);
if (!mAreas) {
// Not using NS_GetContentList because this should not be cached
mAreas = newnsContentList(GetDocument(),
nsHTMLAtoms::area,
mNodeInfo->NamespaceID(),
this,
PR_FALSE);
if (!mAreas) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
NS_ADDREF(*aAreas = mAreas);
return NS_OK;
}
NS_IMPL_STRING_ATTR(nsHTMLMapElement, Name, name)